how to write data on server? - iphone

Question

i am making a registration page were user can register?
this is my code..............
-(IBAction)btn_log:(id)sender
{
//NSString* username = nameInput.text;
//NSString* pass = passInput.text;
NSString* firstname = nameInput.text;
NSString* lastname = passInput.text;
NSString* bname = lastInput.text;
NSString *post =
[[NSString alloc] initWithFormat:#"fname=%#&lname=%#&email=%#",firstname,lastname,bname];
//NSString *post = [[NSString alloc]initWithFormat:#"fname=firstname&lname=lastname&email=bname];
NSData * postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:NO];
NSString * postLength = [NSString stringWithFormat:#"%d",[postData length]];
NSMutableURLRequest * request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:[NSString stringWithFormat:#"http://www.yoursite.com/file.php"]]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSURLConnection * conn = [[NSURLConnection alloc] initWithRequest:request delegate:self];
if (conn) NSLog(#"Connection Successful");
}
But it's not working so please can anyone suggest me where i am making mistake.

Answer 1

try in this way may be it will help you
Nsurl *url = [NSURL URLWithString:[NSString stringWithFormat:#"http://www.yoursite.com/file.php"]]];
nsstring *body = [nsstring stringwithformat:#"%#,%#",nameinput,paasinput];
nsmutableurlrequest *request = [nsmutablerequest alloc]initwithurl:url];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request sethttpbody:[body dataysubgebcidubg:asciiiencoding allowlossyconversion : true]];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody:postData];
NSURLConnection * conn = [[NSURLConnection alloc] initWithRequest:request delegate:self];
if (conn) NSLog(#"Connection Successful");

Answer 2

NSURLConnection * conn = [[NSURLConnection alloc] initWithRequest:request delegate:self];
Replace above line of your code with following line. Probably it will work.
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];